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In a graph(Energy (kj/mol)) the first five ionization energies of an atom are IE1, IE2, IE3, IE4, and IE5. what is the element symbol and its complete electron configuration for
If I have hydrogen peroxide, molecular weight(g/mol) is 34.02, its density (g/ml) is 1.2, its concentration is 50% by weight and I have 2mL of it how many mols would I have
Write the charge and full ground-state electron configuration of the monatomic ion most likely to be formed by P
how many liters of 0.25 M NaOH would I have to add to a acidic solution of pH 3.365 to make a solution of pH 7?Acidic solution is 50mL.
Give a possible molecular formula for C3H5ClO and the molar mass of your possible molecular formula and calculate the percent Cl in that molecule.
Estimate the isoelectric point of ser-his dipeptide. Explain why this value is only an estimate.
The payment sugar beet growers receive is based on the sucrose content of their delivered beets. A sample is taken from each load of beets and the sugar content in the beets is determined by polarim
What information is gained from the UV-VIS data. Compound does not contain a conjugated system.
What fragmentation would give rise to the peak at m/z 45 in the Mass Spectrum? C3H8O. Loss of hydroxyl group.
2 ICl3 + 3 H20 = ICl + HIO3 + 5HCl How many molecules of HCl are formed when 50.0 g of water reacts according to the following balanced reaction. Assume excess ICl3.
In an exothermic reaction, which rate increases more when the temperature is raised, the forward or reverse reaction
If you built a standard galvanic cell using the following half-reactions, what is the maximum work that could be done by this standard cell? (deltaG=wmax)
What is the rate of the reaction if [A] is doubled. Starting with the original concentrations, what is the rate of the reaction if [B] is doubled
The total phosphate concentration is 0.001 M. No other weak acids or bases are present. How many millimeters of 0.5 M H2SO4 are needed to decrease the pH of 1 liter of this water to 6.0
N2O4+ 2 N2H4= 3 N2 + 4 H2O, Determine the limiting reactant and the mass in grams of nitrogen that can be formed from 50.0g N2O4 and 45.0g N2H4. The molar masses are as follows: N2O4=92.02g/mol, N2H
How many millimeters of 1 N NaOH must be added to a 500-mL solution containing 500 mg of acetic acid to increase the pH to 5
If I have 2 mM of pyrene in decane, how do I make 10 uM, 0.5 mM, 1.0 mM, and 1.5 mM solutions using the density of decane (0.73 g/mL)
1FeO3+2 Al= 1Al2O3+2Fe, Determine the percent yield of a reaction that produces 28.65g of Fe when 50.0g of Fe2O3 reacts with excess Al according to the following reaction. Be sure to balance the rea
The pH is 3.95 at the first equialence point and 9.27 at the second equivalence point. If the acid solution contained 0.2015 g of the acid, what is the molar mass, pKa1, and pKa2 of the acid
Draw the major isomer of 4-methylbenzaldehyde and benzyltriphenyl phosphonium chloride at room temperature mixed with NaOH
What is the pressure (in millimeters of mercury) inside a container of a gas connected to an open-end manometer filled with decane (density = 0.7300 g/cm3) when the level in the arm connected to the
Data for the decomposition of hydrogen peroxide at some set temperature T is include below. The rate law depends only on the concentration of H2O2.
Arrange the following ionic compounds in order of decreasing amount of energy released in lattice formation: LiF, CaO, InN and KBr
The excess HCl in the solution required 94.9 mL of 0.128 M NaOH for complete neutralization in a titration. What was the molecular formula of the white substance
Dr. Goodchem observed that he had extracted 15.5 mL of Citral. If the density of pure Citral is 0.888 g/mL, what was the % composition of Citral found in the Orange extract.